Valve.



FATENTED MAR. 24, 1908. S. MATTHES & J'. B. RNEHART.

VALVE.

APPLOATIO FILED HAY 7L the upper SAMUEL MATTI-IES'AND JOHN BARTL VALVE.

Specification of Letters Patent.

Patented March 24, 199% Application led May 8, 191m Serial No. 371,645.

To all whom it 'may concern:

Be it known that We, SAMUEL Ma'i'rrins and JOHN BARTLETT llrNnHAnr, citizens of the lUnited States, residing at Mansfield, in the county of ltichland and State olY Ohio, have invented certain new and useful lmproveniente inw Valves, of which the follow'-v mg 1s a specification.

Our invention relates to a valve adapted to be used with natural or artificial gas and has for its objects a means of closinnr the valve and preventing the flow of gas there through when the 'iressure in the service pipe is reduced below a pre determined amount.

Our invention consists in constructing a valve casing or body-provided with an upwardly extending tubular plug which extends into the upper portion of the valve body casing leaving the free end of the tubular portion slightly'below the top of the valve casing, upon which a. valve seat is formed.

lt further consists in providing a cap 'which is 'fitted to the 'upper portion of a valve casing having a tubular projection in alinernent with the tubular projecting plofT into which a tubular valve stem is fittev carryingr a tubular and llat disk valve and adapted to close the outlet in the tubular plug and valve opening' in the cap.

.It further consists in the ap i icatiori of a hollow cone-shape auxiliary va vc placed in ort1on. 4of a tubular casing` by means of vsihich the gas is prevented from escaping when the valve is closed on account of low pressure or otherwise. Another ob`ect of our invention is the construction o a valve in suoli a manner as to aord means of making the movable parts light in Weight to permit them to be responsive to a slight pressure in openinv or sustaining the valve and means to 'hold the valve 1n close contact with its seat when it dro s b gravity on account of low pressure to` eep it firmly in contact with its seat until manually raised therefrom.

In the drawings, hg'ure 1 represents a vertical sectional elevation of our improved i 4 represents a plan view ofvFig. 3.

valve.' Fig. 2 represents a plan view. Fig. 8 represents a cross-sectional verticalelev'ation of the tubular valve and stem.F F1g. 1g. 5 represents a sectional view of a small cone shaped valve, used to prevent the escape of gas When the valve is closed.

view ol Fig. fl.

In the drawings, 1 represents a valve casing formed tubular in shape with an inlet 2 and outlet 2 formed thereon. An upwardly extending tubular plug 3 is rovided extending upwardly into the valve ody casing' with the free end terminating upper portion of the valve casing and is con-- nected thereto through. the medium of the enlarged screw-threaded outer periphery 4 formed thereon which engages with the threaded inner periphery 5 ol the valve cas ing. When the tubular plug islitted to the inner periphery oi the valve casing, as dee scribed, an annular chamber (0,) is provided communicating with the chamber (li) formed between the topof the tubular plug and the upper portieri ol thevalve body casingf A interiorly screw-threaded. to engage with the threaded outer periphery` o the valve provided and is 4also rovided with boss Si extending upwardly foin the cap 6 to which the removable tubular casing 9 is secured in any preferred manner forming the chamber 10. in the upper portion of the tuhular casing a cup-shaped washer 11 vis inserted and held in place with the face of theannu lar flange 12 abuttin against the inner Wall of the top of thev titular casing forming a vchamber 13. The Washer is retained in lace by the set screw 14. A cone-sha ed hollow valve 15 is fitted Within the. cham er 13 with the apex of the cone in alinement with the aperture 1.6 formed in the top ol. the tubular casing 9. An aperture '7 is rovided in. the center of theboss into mich. the'tubular stem 18 of the tubular valves 19 and fiat disk valve 20 is fitted. The tubular valve 1.9 is adaptedto contact with the seat 21 and close the chamber 22 when the valves 19 and 20 are the gas which passes into the valve casing .and out through the outlet opening.

` Communication` from thev main valve chambers a, and b ishadthrough the medium of the apertures23 rovided in the boss 8. In the drawings, the l1 lines shoeY the tubular valve 19 in contact with its seat ,21 and communication from the mam valve casing into the chamber 22 in the cap.'

The dotted lines show the position of the` tubular anddisk'valves when the pressure log. is plan slightly below the cap 6 having an annular dependingr flange Y.

the disk valve 20 in its open position closingl suspended by the pressure of l i valve 20 closes the outlet (Z) and seets upon the safety factor and e stove or light lett pui" ose, this lies heen en extremely d-iiioult e predetermined amount Wi'iioh amount-is `maintain the valve 20 in its open position for 'The ges et e; nredeterinined pressure is edthe tubular easing 9 and inenuolly lifting; the

from' esortinff throuo'h the ce i and tubular 'ordinary valve body which is such that thel necessarily heavier than the ordinary pres- Vsure of ges een susteln:

reduced below e predetermined amount with the disk Valve 20 in Contact with its Seat24 closing the outlet to the service pipe.

Attention is celled to the feet that the tubular Valve stein 18 is open et the upper extremity 26 to provide e ineens of inereesing or decreasing the Weight of the valves 19 and 20 end their appliances to'regulete the amount of pressure required to open and the purpose intended. We prefer to regu-Y late the Weight by inserting `or removing 'from the tubular stem, ordinary shot 27 ol`- ver ing sizes and Weight. v

lie operation of our vaive is es follows:

niitted through the inlet aperture 2 of the vulve easing passing into the chemhers o and i) ond when. the velves 19 and 20 ere rnanuellyreised they ere held in suspension at the )redeterinined pressure or :my excess thereoi' permitting thev gus to flow throughvthe outlet (2') for use. When the ressure is reduoedfloelow the predeterininec amount, the Valves 19 und 20 fell by grevity andthe the seat 24 formed on; the upper extremit)v of the tubular plug 3 cutting oi@ eil communin cation with the service pipe. if the pressure is increased above the predetermined amount, it exerts its pressure egeinst the top of the Valve holding it firmly `to its sent end it cannotbe opened except by removing valve 20 ironiits see The is prevented arising bythe hollow/eene valve l5 which is forced by the pressure to eouteet with the seat 25 on the inner iiueoi the top ot 'the tubular casing.

in the use of valves oi ordinerj/f construetion for burning naturel or artificiel ges, it' for any reason the pressure is reduced below burning, it is highly dangerous to life end property unless Sonie ineens is provided to shut ofi the ges eutoinetieelly when the pressure is reduced from any cause oelow such en amount es will ineke it sefe to burn in the construction heretofore 'of Valves for this pro lein heoeuse of the, construction' oi' the Weight of the velve end its appliances 'W e hevedesigned 'e velve that will ooerete' et o very low pressure 1n the consumi.

x natural or ertniciel ges end will close autometieelly 'when the pressure is reduced heloef;

usuelly determined by the pressure et whioh it is safe to ouin either ges.,

Herring hilly deeenloed our invention,

`Whe'; we Gleim ond desire to secure 'by LettersA l.. t. ges seiety mechanism comprising e casing substantially tubular in form, seid 'easing having inlet end outlet openings et having e Chamber formed ,therein with eyelye seet formed upon the lowereirtiemity Voil the well of the eheinher, e double faced valve of lifflit specific gravity providedwith en u` werdly extending tubulei" stem loosely iitte to an aperture in the oep-end adopted to move within the eesing end Close corumunieetion between the inlet end outlet apertures and the ehe-ruben in theres?, end ineens to inoreaise or decrease the Weight of the tubular Valve.

2. A ges safety valve 'Comprising e casing having an inlet ond outlet opening, e tubule'r member extending Within easing having e valve seat formed upon tlief'ree end, L cap secured to 'the easing provided with chenilier end yelve seat, double ieeed valve formed of sheet motel with one elisir eene shepe end. the othe iet, seid volvo being edented to oi se eer nuinicetion. hetweenthe outlet and inlet apertures hy its own speoiiio grevity sided hy the pressure of ges end to prevent the esoepe oi" when the valve iteined in open .position by the pressure, tubuler stein itted to seid, double feceri velve whereby the inner plier? een be fitted with shot or other foreign. tenne to very the spe :iiio of the Tsive to imei tain seid 'v'.iye in open posf` .on et determined pressure,

3. A safety valve ior ges comprising oes-v ing withv iuiet zuid outlet openings, e; tubular member fitted to the outlet opening nro- ]eetlug ehove the inlet opening, e double feeed vulve formed of sheet motel with yone disk formed eene sliufpo end the other mounted within the s, tuhulsir stein ii'tted to seid d. eed "unive, ineens to increase the weight oi sein, vulve, o, oep providedwith e boss secured to seidvelyee i e removable itted to the periphery of seid hose to iuclose rouler stein. of the valve stem end to prin de ineens to muuuelly reise the velue without dis si ruining eny other part ol" the 'va'uve n'ieelienisin.

in. testimony whereoi1 'we our signetures in presence of two rfimeeses.

SAB/IU EL ivi elsing,

izo 

